A refrigerant leakage detection method and an air conditioner

A leakage detection, air conditioner technology, applied in the direction of machinery and equipment, can solve the problems of refrigerant leakage, easy misjudgment, single detection data parameters, etc., to achieve the effect of avoiding damage, avoiding potential safety hazards, and convenient charging

Active Publication Date: 2021-08-27
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a refrigerant leakage detection method to solve the problems in the prior art that when an air conditioner performs refrigerant leakage judgment, the judgment method is simple, the detection data parameters are relatively single, and misjudgment is prone to occur.

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  • A refrigerant leakage detection method and an air conditioner
  • A refrigerant leakage detection method and an air conditioner
  • A refrigerant leakage detection method and an air conditioner

Examples

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Embodiment 1

[0056] figure 1It is a refrigerant leakage detection method according to an embodiment of the present invention, specifically comprising the following steps:

[0057] S1. Detect the current running state of the air conditioner. When the running state of the air conditioner is stable, the control system enters the refrigerant leakage determination procedure.

[0058] Among them, there are many indicators to measure the operating state of the air conditioner, such as the continuous running time of the compressor, the difference between the current indoor temperature and the indoor coil temperature, and the outdoor ambient temperature. Through the combination of various methods, it can accurately judge whether the operation status of the air conditioner meets the requirements, and then judge whether the operation of the air conditioner is stable. When the air conditioner is in stable operation, it enters the refrigerant leakage determination program to ensure accurate detection. ...

Embodiment 2

[0071] like Figure 2~4 As shown, this embodiment further limits the refrigerant leakage detection method on the basis of Embodiment 1, specifically including the following steps:

[0072] S11. After the air conditioner is turned on, the system automatically records the continuous running time ta of the compressor, and judges whether the continuous running time ta of the compressor reaches the first preset time t1. When the continuous running time ta of the compressor reaches the first preset time t1 , execute step S12.

[0073] Specifically, right after the air conditioner is turned on, the air conditioner has not yet adjusted the indoor temperature, and the difference between the indoor temperature and the target temperature set by the user is large, and the compressor runs at a higher frequency. In order to quickly adjust the indoor temperature, the expansion valve opening Larger, after the continuous running time of the compressor reaches the first preset time, the runnin...

Embodiment 3

[0122] On the basis of Embodiments 1 and 2, this embodiment further provides an air conditioner, which adopts the refrigerant leakage detection method described in the above embodiment, and specifically the air conditioner includes a compressor, an evaporator, Refrigerant circulation pipeline, detection system, timing module and control system; the detection system and timing module are connected to the control system, one end of the refrigerant circulation pipeline system is connected to the compressor, and the other end is connected to the evaporator, and the detection system includes a temperature Detection system, speed detector and pressure detector, the temperature detection system includes:

[0123] The first temperature sensor is arranged at the air inlet of the indoor unit and is used to detect the indoor temperature;

[0124] The second temperature sensor is arranged on the coil of the indoor evaporator to detect the temperature of the coil of the indoor;

[0125] T...

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Abstract

The invention provides a refrigerant leakage detection method, comprising the following steps: S1, detecting the current operating state of the air conditioner, when the air conditioner is running stably, the control system enters the refrigerant leakage determination program; S2, executing the refrigerant leakage determination program, when When the real-time discharge temperature of the compressor satisfies the first preset condition, and the difference between the inlet temperature and outlet temperature of the evaporator satisfies the second preset condition, it is determined that refrigerant leakage occurs; S3, execute the refrigerant leakage verification procedure; S4, execute the refrigerant leakage amount Judgment procedure. The refrigerant leakage detection method described in the present invention can accurately determine whether refrigerant leakage occurs, avoids the influence of factors such as refrigerant pressure, compressor performance, and pipeline vibration on the refrigerant leakage determination process, and can accurately determine whether refrigerant leakage occurs. It is judged whether it is necessary to add refrigerant, which is convenient for users or maintenance personnel to repair the air conditioner and charge refrigerant, and improve user experience.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a refrigerant leakage detection method and an air conditioner. Background technique [0002] The existing air-conditioning and refrigeration system includes a compressor, an outdoor heat exchanger, a throttling device, an indoor heat exchanger, and a certain amount of refrigerant pre-charged. In the case of no leakage of refrigerant, the air conditioning system can operate normally. If the installation of the air conditioner is not standardized or the refrigerant in the system pipeline leaks slowly for a long time due to vibration and other reasons during later operation, the cooling effect of the air conditioner system will deteriorate. When the refrigerant leakage is serious, the compressor is often burned. Therefore, it is very necessary to detect the leakage of refrigerant in the air conditioner. In the prior art, when an air conditioner is used to determine refri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/36F24F11/64F24F11/61F24F11/52
CPCF24F11/36F24F11/52F24F11/61F24F11/64
Inventor 白韡许真鑫
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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